Cooktop control knob with a reflective ring



FIG. 1 is a top, front, right perspective view of a cooktop control knob with a reflective ring showing our new design in environmental use;

FIG. 2 is a front elevation view of the cooktop control knob with a reflective ring of FIG. 1;

FIG. 3 is a back elevation view of the cooktop control knob with a reflective ring of FIG. 1;

FIG. 4 is a right elevation view of the cooktop control knob with a reflective ring of FIG. 1;

FIG. 5 is a left elevation view of the cooktop control knob with a reflective ring of FIG. 1;

FIG. 6 is a top plan view of the cooktop control knob with a reflective ring of FIG. 1; and,

FIG. 7 is a bottom plan view of the cooktop control knob with a reflective ring of FIG. 1.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM We claim the ornamental design for a cooktop control knob with a reflective ring, as shown and described. 